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package cz.frantovo.alt2xml;
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import java.io.IOException;
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import java.util.Stack;
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import org.json.simple.parser.ParseException;
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import org.xml.sax.ContentHandler;
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import org.xml.sax.SAXException;
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/**
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) *
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* @author fiki
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*/
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public class JsonSimpleContentHandler implements org.json.simple.parser.ContentHandler {
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/** Sem vypisujeme XML události */
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private ContentHandler saxVýstup;
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/** Musíme si pamatovat polohu v XML stromu, abychom věděli, kterou značku kdy uzavřít */
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private Stack<String> poloha = new Stack<>();
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public JsonSimpleContentHandler(ContentHandler saxVýstup) {
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this.saxVýstup = saxVýstup;
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}
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@Override
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public void startJSON() throws ParseException, IOException {
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try {
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saxVýstup.startDocument();
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saxVýstup.startElement(null, null, "json", null);
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} catch (SAXException e) {
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throw new IOException(e);
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}
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}
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@Override
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public void endJSON() throws ParseException, IOException {
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try {
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saxVýstup.endElement(null, null, "json");
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saxVýstup.endDocument();
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} catch (SAXException e) {
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throw new IOException(e);
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}
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}
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@Override
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public boolean startObject() throws ParseException, IOException {
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// System.err.println("startObject");
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return true;
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}
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@Override
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public boolean endObject() throws ParseException, IOException {
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// System.err.println("endObject");
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return true;
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}
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@Override
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public boolean startObjectEntry(String key) throws ParseException, IOException {
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try {
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saxVýstup.startElement(null, null, key, null);
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poloha.push(key);
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} catch (SAXException e) {
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throw new IOException(e);
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}
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// System.err.println("startObjectEntry: " + key);
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return true;
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}
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@Override
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public boolean endObjectEntry() throws ParseException, IOException {
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try {
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String značka = poloha.pop();
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saxVýstup.endElement(null, null, značka);
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} catch (SAXException e) {
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throw new IOException(e);
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}
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// System.err.println("endObjectEntry");
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return true;
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}
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@Override
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public boolean startArray() throws ParseException, IOException {
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// System.err.println("startArray");
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return true;
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}
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@Override
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public boolean endArray() throws ParseException, IOException {
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// System.err.println("endArray");
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return true;
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}
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@Override
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public boolean primitive(Object value) throws ParseException, IOException {
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try {
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String hodnota = String.valueOf(value);
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saxVýstup.characters(hodnota.toCharArray(), 0, hodnota.length());
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} catch (SAXException e) {
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throw new IOException(e);
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}
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// System.err.println("primitive: " + value);
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return true;
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}
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}
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